A print control system includes a computer with application software and a printer driver installed thereinto, a printer, which is connected with the computer, configured to perform a printing operation based on print settings including a setting item configurable via the application software and the printer driver, a judging unit configured to judge whether a first setting value of the setting item configured via one of the application software and the printer driver is equivalent to a second setting value of the setting item configured via the printer driver, and a warning unit configured to issue a warning when the judgment by the judging unit is negative.